This was part of a line of educational VHS tapes from the late 1980s. The tape apparently dates to 1988. The first half features an ape having a birthday party while teaching the viewer the ABCs. The second half features a video storybook of two children who find their way to "Rainbowland". In this world, everything, including the people are made of simple shapes and colors.
The company, Tele-Story, also produced sets of educational audio cassette tapes and books during the early 1980s.